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Dental Swaging Apparatus

Description: Patent for a dental apparatus that produces gold facings and cusps for individual teeth, as well as plate and bridge work.
Date: July 31, 1906
Creator: Crawford, Lyter H.

Dental Tool

Description: Patent for a series of dental cleaning tools to remove deposits from teeth and smooth rough surfaces. This design inflicts minimal damage to the gum tissue while both a guide and blade are in contact with the tooth.
Date: May 4, 1915
Creator: Carr, Cassius M.

Dental Tool

Description: Patent for a dental tool that is to "prevent the loss of amalgam" (p. 2).
Date: June 19, 1888
Creator: Morris, James P., of Paris, Texas

Dentistry

Description: Patent for a device to tighten and hold loose teeth to the jaw.
Date: November 11, 1902
Creator: Martin, George G.

Deposit File

Description: Patent for a deposit file. Illustration included.
Date: April 4, 1905
Creator: Anderson, Samuel C.

Depurator

Description: Patent for a depurator. "This invention realtes to an improved vacuum apparatus for medicinal purposes" (line 11-12). Illustrations included.
Date: August 4, 1903
Creator: Richards, Lloyd H.

Derailer

Description: This is a patent for a railway Derailer. This new derailer is less expensive, easier to manufacture, and will be an improvement over older models. For example, it is easier to attach to the rail track and more efficient at stopping railroad collisions.
Date: April 22, 1919
Creator: Gravis, James. C

Derailer.

Description: Patent for a derailer for use on railroad tracks that can be either put on a switch or directly on the rails.
Date: November 16, 1909
Creator: Farrell, John T.

Derailing Block dated October 1, 1918

Description: Patent for new and improved detailing rocks for railroads. What makes this unique is that the clamp can be quickly and effectively clamped to railroad tracks.
Date: February 19, 1918
Creator: Samuel Harvey Garrett & Joseph Owen Staude

Derailing Device.

Description: Patent for a derailing device to stop trains from colliding with one another by derailing the oncoming train.
Date: December 24, 1907
Creator: Clegg, William Owen

Derailing Device.

Description: Patent for a "portable derailing device" (line 13) including illustrations.
Date: January 17, 1911
Creator: Martin, Daniel W.

Derailing Frog

Description: Patent for a derailing frog. Illustration included.
Date: June 20, 1905
Creator: Bain, William Y.

Derrick.

Description: Patent for improvements to derricks for oil wells.
Date: June 9, 1920
Creator: Babek, Frank

Derrick.

Description: Patent for improvements to derricks, specifically those used on the decks of ships and other vessels, to prevent the structure from becoming entangled with fall ropes or cables during operation.
Date: August 19, 1919
Creator: Scanlan, Thomas J.

Derrick

Description: Patent for a derrick. Illustration included.
Date: April 3, 1906
Creator: McClain, Thomas & McDaniel, Robert S.

Derrick.

Description: Patent for improvements in derricks or machines for hoisting heavy objects, which can be easily erected and operated; this device “can be manipulated with ease and by which the article being elevated or lowered may be changed in position without moving the support.” (Lines 20-23) Illustration is included.
Date: April 21, 1891
Creator: Lindsey, William E.

Derrick.

Description: Patent for a portable derrick "in which the derrick-frame is rotatable, the same being especially adapted for use in handling bales of cotton, baggage, ice, and other heavy articles." (Lines 14-17) Includes instructions and illustrations.
Date: March 9, 1897
Creator: Stallings, George V.

Design for a Badge

Description: Patent for a design for an ornamental badge celebrating the Emancipation of slaves by Abraham Lincoln.
Date: October 6, 1906
Creator: Whitney, Junius P.

Design for a Badge.

Description: Patent for design for a badge.
Date: July 18, 1893
Creator: Edwards, Charles L.

Design for a Badge.

Description: Design patent for a badge that has a near-rectangular body with additional ornamentation.
Date: December 7, 1886
Creator: Lukanitsch, Joseph & Cosman, William H.

Design for a Badge.

Description: Design patent for a badge, "consisting of a plate or body ornamented on one side with the representation of a rising sun, an arm and hand, a serpent, and a shackle and lock" (lines 43-46). The accompanying illustration is not available.
Date: July 26, 1887
Creator: Horton, Henry A. R.

Design for a Badge or Medal.

Description: Design patent for a round souvenir badge or medal that has an image of a star on the front with a portrait in the center, and rays emanating toward the outside edge used for text. The back of the medal has an image of the Texas state capitol and spaces for additional text. The design also includes a suspending-bar shaped as a bald eagle with spread wings, holding crossed rifles.
Date: December 6, 1887
Creator: Maxcy, John Wharton

Design for a Binder for Plaster.

Description: Design patent for a binder for plaster with parallel corrugations forming reversely-arranged dovetailed ribs.
Date: November 7, 1899
Creator: Ettler, John Adolph
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